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Asymmetric beams can create significant bias in estimates of the power spectra from CMB experiments. With the temperature power spectrum many orders of magnitude stronger than the B-mode power spectrum any systematic error that couples the…

Cosmology and Nongalactic Astrophysics · Physics 2017-03-08 Christopher G. R. Wallis , Michael L. Brown , Richard A. Battye , Giampaolo Pisano , Luca Lamagna

We derive a constraint on patchy screening of the cosmic microwave background from inhomogeneous reionization, using off-diagonal TB and TT correlations in WMAP-7 temperature/polarization data. We interpret this as a constraint on the rms…

Cosmology and Nongalactic Astrophysics · Physics 2013-10-08 Vera Gluscevic , Marc Kamionkowski , Duncan Hanson

The thermal Sunyaev-Zel'dovich (tSZ) effect induces a Compton-$y$ distortion in cosmic microwave background (CMB) temperature maps that is sensitive to a line of sight integral of the ionized gas pressure. By correlating the positions of…

Cosmology and Nongalactic Astrophysics · Physics 2020-02-26 S. Pandey , E. J. Baxter , J. C. Hill

Measurements of gravitational lensing of the cosmic microwave background (CMB) hold the promise of yielding unique insights into cosmology at high redshift. Uncertainties due to baryonic effects associated with galaxy formation and…

Cosmology and Nongalactic Astrophysics · Physics 2020-11-13 Eegene Chung , Simon Foreman , Alexander van Engelen

We review aspects of Cosmic Microwave Background (CMB) spectral distortions which do not appear to have been fully explored in the literature. In particular, implications of recent evidences of heating of the intergalactic medium (IGM) by…

Cosmology and Nongalactic Astrophysics · Physics 2016-04-13 G. De Zotti , M. Negrello , G. Castex , A. Lapi , M. Bonato

A promising way to measure the distribution of matter on small scales (k ~ 10 hMpc^-1) is to use gravitational lensing of the Cosmic Microwave Background (CMB). CMB-HD, a proposed high-resolution, low-noise millimeter survey over half the…

Cosmology and Nongalactic Astrophysics · Physics 2022-05-04 Dongwon Han , Neelima Sehgal

We use cosmic microwave background (CMB) temperature maps from the 500 deg$^{2}$ SPTpol survey to measure the stacked lensing convergence of galaxy clusters from the Dark Energy Survey (DES) Year-3 redMaPPer (RM) cluster catalog. The…

Cosmology and Nongalactic Astrophysics · Physics 2019-02-21 S. Raghunathan , S. Patil , E. Baxter , B. A. Benson , L. E. Bleem , T. L. Chou , T. M. Crawford , G. P. Holder , T. McClintock , C. L. Reichardt , E. Rozo , T. N. Varga , T. M. C. Abbott , P. A. R. Ade , S. Allam , A. J. Anderson , J. Annis , J. E. Austermann , S. Avila , J. A. Beall , K. Bechtol , A. N. Bender , G. Bernstein , E. Bertin , F. Bianchini , L. Bleem , D. Brooks , D. L. Burke , J. E. Carlstrom , J. Carretero , C. L. Chang , H. C. Chiang , H-M. Cho , R. Citron , A. T. Crites , C. E. Cunha , L. N. da Costa , C. Davis , S. Desai , H. T. Diehl , J. P. Dietrich , M. A. Dobbs , P. Doel , T. F. Eifler , W. Everett , A. E. Evrard , B. Flaugher , P. Fosalba , J. Frieman , J. Gallicchio , J. García-Bellido , E. Gaztanaga , E. M. George , A. Gilbert , R. A. Gruendl , D. Gruen , J. Gschwend , N. Gupta , G. Gutierrez , T. de Haan , N. W. Halverson , N. Harrington , W. G. Hartley , J. W. Henning , G. C. Hilton , D. L. Hollowood , W. L. Holzapfel , K. Honscheid , Z. Hou , B. Hoyle , J. D. Hrubes , N. Huang , J. Hubmayr , K. D. Irwin , D. J. James , T. Jeltema , A. G. Kim , M. Carrasco Kind , L. Knox , A. Kovacs , K. Kuehn , N. Kuropatkin , A. T. Lee , M. Lima , T. S. Li , M. A. G. Maia , J. L. Marshall , J. J. McMahon , P. Melchior , F. Menanteau , S. S. Meyer , C. J. Miller , R. Miquel , L. Mocanu , J. Montgomery , A. Nadolski , T. Natoli , J. P. Nibarger , V. Novosad , S. Padin , A. A. Plazas , C. Pryke , D. Rapetti , A. K. Romer , A. Carnero Rosell , J. E. Ruhl , B. R. Saliwanchik , E. Sanchez , J. T. Sayre , V. Scarpine , K. K. Schaffer , M. Schubnell , S. Serrano , I. Sevilla-Noarbe , G. Smecher , R. C. Smith , M. Soares-Santos , F. Sobreira , A. A. Stark , K. T. Story , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , C. Tucker , K. Vanderlinde , J. De Vicente , J. D. Vieira , G. Wang , N. Whitehorn , W. L. K. Wu , Y. Zhang

We report the first detection of gravitational lensing due to galaxy clusters using only the polarization of the cosmic microwave background (CMB). The lensing signal is obtained using a new estimator that extracts the lensing dipole…

Cosmology and Nongalactic Astrophysics · Physics 2019-11-06 S. Raghunathan , S. Patil , E. Baxter , B. A. Benson , L. E. Bleem , T. M. Crawford , G. P. Holder , T. McClintock , C. L. Reichardt , T. N. Varga , N. Whitehorn , P. A. R. Ade , S. Allam , A. J. Anderson , J. E. Austermann , S. Avila , J. S. Avva , D. Bacon , J. A. Beall , A. N. Bender , F. Bianchini , S. Bocquet , D. Brooks , D. L. Burke , J. E. Carlstrom , J. Carretero , F. J. Castander , C. L. Chang , H. C. Chiang , R. Citron , M. Costanzi , A. T. Crites , L. N. da Costa , S. Desai , H. T. Diehl , J. P. Dietrich , M. A. Dobbs , P. Doel , S. Everett , A. E. Evrard , C. Feng , B. Flaugher , P. Fosalba , J. Frieman , J. Gallicchio , J. García-Bellido , E. Gaztanaga , E. M. George , T. Giannantonio , A. Gilbert , R. A. Gruendl , J. Gschwend , N. Gupta , G. Gutierrez , T. de Haan , N. W. Halverson , N. Harrington , J. W. Henning , G. C. Hilton , D. L. Hollowood , W. L. Holzapfel , K. Honscheid , J. D. Hrubes , N. Huang , J. Hubmayr , K. D. Irwin , T. Jeltema , M. Carrasco Kind , L. Knox , N. Kuropatkin , O. Lahav , A. T. Lee , D. Li , M. Lima , A. Lowitz , M. A. G. Maia , J. L. Marshall , J. J. McMahon , P. Melchior , F. Menanteau , S. S. Meyer , R. Miquel , L. M. Mocanu , J. J. Mohr , J. Montgomery , C. Corbett Moran , A. Nadolski , T. Natoli , J. P. Nibarger , G. Noble , V. Novosad , R. L. C. Ogando , S. Padin , A. A. Plazas , C. Pryke , D. Rapetti , A. K. Romer , A. Roodman , A. Carnero Rosell , E. Rozo , J. E. Ruhl , E. S. Rykoff , B. R. Saliwanchik , E. Sanchez , J. T. Sayre , V. Scarpine , K. K. Schaffer , M. Schubnell , S. Serrano , I. Sevilla-Noarbe , C. Sievers , G. Smecher , M. Smith , M. Soares-Santos , A. A. Stark , K. T. Story , E. Suchyta , M. E. C. Swanson , G. Tarle , C. Tucker , K. Vanderlinde , T. Veach , J. De Vicente , J. D. Vieira , V. Vikram , G. Wang , W. L. K. Wu , V. Yefremenko , Y. Zhang

The Simons Observatory (SO) will perform ground-based observations of the cosmic microwave background (CMB) with several small and large aperture telescopes, each outfitted with thousands to tens of thousands of superconducting aluminum…

In the current era of high-precision CMB experiments, the imprint of gravitational lensing on the CMB temperature is exploited as a source of valuable information. Especially the reconstruction of the lensing potential power spectrum is of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Philipp M. Merkel , Bjoern Malte Schaefer

The Universe is not perfectly homogeneous, the large scale structure forms overdense regions and voids. In this paper, we consider the possibility that we occupy a special position in our Universe, close to the center of a local underdense…

Cosmology and Nongalactic Astrophysics · Physics 2019-12-13 Viraj Nistane , Giulia Cusin , Martin Kunz

In this work, we perform a statistical inference of the classical background law governing the evolution of the temperature of the cosmic microwave background radiation (CMB), given by $T_{\rm CMB}(z) = T_0(1 + z)$. To this end, we employ…

Cosmology and Nongalactic Astrophysics · Physics 2025-06-02 Felipe Avila , Alexander Bonilla Rivera , Rafael C. Nunes , R. F. L. Holanda , Armando Bernui

Planck's Cosmic Microwave Background temperature and polarization observations are the premier dataset for constraining cosmological models. Cosmic variance limited temperature at large and intermediate scales today dominates the…

Cosmology and Nongalactic Astrophysics · Physics 2023-01-18 Adrien La Posta , Umberto Natale , Erminia Calabrese , Xavier Garrido , Thibaut Louis

Due to the integrated Sachs-Wolfe (ISW) effect, cosmic microwave background (CMB) temperature and polarization fluctuations are correlated with the gravitational lensing potential. Famously, this induces a CMB three-point function, whose…

Cosmology and Nongalactic Astrophysics · Physics 2025-06-17 Oliver H. E. Philcox , J. Colin Hill

We discuss several opportunities involving cosmic microwave background (CMB) observations during the post-MAP era. The curl-modes of CMB polarization allow a direct detection of inflationary gravitational waves and a measurement of the…

Astrophysics · Physics 2007-05-23 Asantha Cooray

The Cosmic Microwave Background (CMB) is a fundamental observational tool in modern cosmology. The linear polarization of the CMB provides a crucial observational tool for exploring new physics, including the inflationary paradigm and…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-12 Vyoma Muralidhara

We review advances in low temperature detector (LTD) arrays for Cosmic Microwave Background (CMB) polarization experiments, with a particular emphasis on imaging arrays. We briefly motivate the science case, which has spurred a large number…

The presence of astrophysical emissions in microwave observations forces us to perform component separation to extract the Cosmic Microwave Background (CMB) signal. However, even in the most optimistic cases, there are still strongly…

Cosmology and Nongalactic Astrophysics · Physics 2024-09-26 C. Gimeno-Amo , E. Martínez-González , R. B. Barreiro

See comments. We calculate analytically an effect of the thermal Comptonization on the cosmic microwave background (CMB) photons when they propagate through galaxy clusters. We estimate a deformation of the CMB spectrum due to multiple…

Cosmology and Nongalactic Astrophysics · Physics 2019-11-26 Lev Titarchuk , Galina Lipunova